Laser sealed vacuum insulation window
Abstract
A laser sealed evacuated window panel is comprised of two glass panes held spaced apart in relation to each other by a plurality of spherical glass beads and glass welded around the edges to provide an evacuated space between the glass panes that is completely glass sealed from the exterior. The glass welded edge seal is obtained by welding the edges of the glass panes together with a laser beam while the glass panes and bead spacers are positioned in a vacuum furnace and heated to the annealing point of the glass to avoid stress fracture in the area of the glass weld. The laser welding in the furnace can be directed around the perimeter of the glass panel by a combination of rotating the glass panel and linearly translating or aiming the laser with a relay mirror.
- Inventors:
-
- Golden, CO
- Issue Date:
- Research Org.:
- Midwest Research Institute, Kansas City, MO (United States)
- OSTI Identifier:
- 866323
- Patent Number(s):
- 4683154
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C03 - GLASS C03B - MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
E - FIXED CONSTRUCTIONS E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL E06B - FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- DOE Contract Number:
- AC02-83CH10093
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- laser; sealed; vacuum; insulation; window; evacuated; panel; comprised; glass; panes; held; spaced; apart; relation; plurality; spherical; beads; welded; edges; provide; space; completely; exterior; edge; seal; obtained; welding; beam; bead; spacers; positioned; furnace; heated; annealing; avoid; stress; fracture; weld; directed; perimeter; combination; rotating; linearly; translating; aiming; relay; mirror; glass beads; edge seal; vacuum furnace; laser welding; vacuum insulation; laser beam; spaced apart; laser weld; sealed vacuum; spherical glass; panes held; evacuated space; laser sealed; /428/52/156/
Citation Formats
Benson, David K, and Tracy, C Edwin. Laser sealed vacuum insulation window. United States: N. p., 1987.
Web.
Benson, David K, & Tracy, C Edwin. Laser sealed vacuum insulation window. United States.
Benson, David K, and Tracy, C Edwin. Thu .
"Laser sealed vacuum insulation window". United States. https://www.osti.gov/servlets/purl/866323.
@article{osti_866323,
title = {Laser sealed vacuum insulation window},
author = {Benson, David K and Tracy, C Edwin},
abstractNote = {A laser sealed evacuated window panel is comprised of two glass panes held spaced apart in relation to each other by a plurality of spherical glass beads and glass welded around the edges to provide an evacuated space between the glass panes that is completely glass sealed from the exterior. The glass welded edge seal is obtained by welding the edges of the glass panes together with a laser beam while the glass panes and bead spacers are positioned in a vacuum furnace and heated to the annealing point of the glass to avoid stress fracture in the area of the glass weld. The laser welding in the furnace can be directed around the perimeter of the glass panel by a combination of rotating the glass panel and linearly translating or aiming the laser with a relay mirror.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1987},
month = {Thu Jan 01 00:00:00 EST 1987}
}